In the serial production of components for automotive applications such as cooling and air-conditioning systems, aluminum die-cast materials are frequently used due to their excellent castability. The aim of providing light weight components can be approached with thin walled cross sections even for complex structural parts. However, cast components are usually connected to semifinished products such as profiles or tubes. The connections have to be mostly pressure tight. The joining technique for these applications has to be highly productive to obtain high component outcome and cost-efficient. Laser beam welding techniques are especially suitable for these tasks. Die-cast components have limited or no weldability due to their manufacturing process. This is due to entrapped gases within pores or cavities under high pressure conditions. Furthermore, the mold release agents for the die-cast process are inappropriate for obtaining homogeneous and sound weld seams. Consequently, this results in a larger number of pores in the weld seam and stochastic melt pool blow-outs, which prohibit mostly the use of the component. To solve these issues, a new welding technique, remoweld®T, has been developed at Fraunhofer IWS. This unique method has been extensively tested and used for serial-production. The decisive step was to use laser sources with brilliant beam quality in combination with a high frequency beam oscillation within the melt pool. In this paper, the technological approach will be presented. With the remoweld®T method, it was possible to obtain homogeneous weld seams with low porosity and a strongly reduced distortion for the first time. Minor component tolerances and a reproducible joining technique with a high output for serial production can be achieved.
Skip Nav Destination
Article navigation
May 2017
Research Article|
June 26 2017
Laser beam welding of atmosphere aluminum die cast material using high frequency beam oscillation and brilliant beam sources
Dirk Dittrich;
Dirk Dittrich
Fraunhofer IWS Dresden
, Winterbergstrasse 28, 01277 Dresden, Germany
Search for other works by this author on:
Axel Jahn;
Axel Jahn
Fraunhofer IWS Dresden
, Winterbergstrasse 28, 01277 Dresden, Germany
Search for other works by this author on:
Jens Standfuss;
Jens Standfuss
Fraunhofer IWS Dresden
, Winterbergstrasse 28, 01277 Dresden, Germany
Search for other works by this author on:
Eckhard Beyer
Eckhard Beyer
Fraunhofer IWS Dresden
, Winterbergstrasse 28, 01277 Dresden, Germany
and Technische Universität Dresden
, 01062 Dresden, Germany
Search for other works by this author on:
J. Laser Appl. 29, 022425 (2017)
Article history
Received:
March 28 2017
Accepted:
March 28 2017
Citation
Dirk Dittrich, Axel Jahn, Jens Standfuss, Eckhard Beyer; Laser beam welding of atmosphere aluminum die cast material using high frequency beam oscillation and brilliant beam sources. J. Laser Appl. 1 May 2017; 29 (2): 022425. https://doi.org/10.2351/1.4983250
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
Tailored microstructure in laser-based powder bed fusion of IN718 through novel beam shaping technology
Narges Mirzabeigi, Peter Holfelder-Schwalme, et al.
Scaling of ultrashort-pulsed laser structuring processes for electromobility applications using a spatial light modulator
Christian Geiger, Alena Gruendl, et al.
Influence of the inner roughness of powder channels on the powder propagation behavior in laser metal deposition
Annika Bohlen, Thomas Seefeld
Related Content
Laser-multi-pass-narrow-gap-welding of nickel superalloy—Alloy 617OCC
J. Laser Appl. (April 2019)
In situ observation with x-ray for tentative exploration of laser beam welding processes for aluminum-based alloys
J. Laser Appl. (December 2020)
Ultrafast and nonlinear spectroscopy of brilliant green-based nanoGUMBOS with enhanced near-infrared emission
J. Chem. Phys. (October 2017)
Investigations on remote laser beam welding of dissimilar joints of austenitic chromium-nickel steel (X5CrNi18-10) and aluminum alloy (AA6082-T6) for battery housings
J. Laser Appl. (June 2018)
Brilliant and tunable color of carbon-coated thin anodic aluminum oxide films
Appl. Phys. Lett. (July 2007)